Mechanic waves in sand: Effect of polydispersity (CD-rom)

Stefan Luding, O.J.P. Mouraille

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Abstract

The sound propagation mechanisms inside dense granular matter are challenging the attempts to describe it because of the discrete nature of the material. Phenomena like dissipation, scattering, and dispersion are hard to predict based on the material state and/or properties and vice-versa. We propose here a simulation method using dynamic discrete elements in order to get more insight in this problem. The idea is to examine a small perturbation created on one side of a dense, static packing of grains of tiny size variations as small as typical contact deformations, during its propagation and when it arrives at the opposite side. Simulations with ordered, monodisperse and polydisperse, packings, reveal a strong impact of the system on the wave properties.
Original languageUndefined
Title of host publicationPARTEC 2007, 27-29 March 2007, Nuremberg, Germany
EditorsW. Peukert, C. Schreglmann
Place of PublicationNueremburg, Germany
PublisherUniversity of Erlangen-Nuremberg, Institute of Particle Technology
Pages1-4
Number of pages4
Publication statusPublished - 27 Mar 2008
EventInternational Congress on Particle Technology, PARTEC 2007 - Nuremberg, Germany
Duration: 27 Mar 200729 Mar 2007

Publication series

Name
PublisherUniversity of Erlangen-Nuremberg, Institute of Particle Technology

Conference

ConferenceInternational Congress on Particle Technology, PARTEC 2007
Abbreviated titlePARTEC
CountryGermany
CityNuremberg
Period27/03/0729/03/07

Keywords

  • METIS-249794
  • IR-80328

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